The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 10, 1983
Filed:
Oct. 27, 1981
Nippon Kogaku K.K., Tokyo, JP;
Abstract
Signal transmission device in an intermediate lens barrel comprises a signal surface, a first inclined surface and a second inclined surface. When the intermediate lens barrel is connected to an objective lens, the signal surface gets in engagement with a signal member on the objective lens barrel and is shifted in the direction of the optical axis. When the intermediate lens barrel is rotated to connect it to a camera, a signal detection member on the camera is guided to the signal surface by the first inclined surface. The second inclined surface guides the detection member to a reference surface on the intermediate lens barrel when the latter is rotated in the direction to disconnect the barrel from the camera.